new cats sprite

new requirements: date, dateEquals, time, timeEquals
new rewards: mapchange

ATCS_JAR.jardesc

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <jardesc>
-    <jar path="ATContentStudio/ATCS_v0.6.19.jar"/>
+    <jar path="ATContentStudio/ATCS_v0.6.20.jar"/>
     <options buildIfNeeded="true" compress="true" descriptionLocation="/ATContentStudio/ATCS_JAR.jardesc" exportErrors="true" exportWarnings="true" includeDirectoryEntries="false" overwrite="false" saveDescription="true" storeRefactorings="false" useSourceFolders="false"/>
     <storedRefactorings deprecationInfo="true" structuralOnly="false"/>
     <selectedProjects/>

packaging/Windows/ATCS_Installer.nsi

@@ -1,6 +1,6 @@
 !include MUI2.nsh
 
-!define VERSION "0.6.19"
+!define VERSION "0.6.20"
 !define TRAINER_VERSION "0.1.5"
 !define JAVA_BIN "java"
 
@@ -88,7 +88,7 @@ Section install
   file "C:\AT\ATCS_source\lib\AndorsTrainer_v${TRAINER_VERSION}.jar"
   file "C:\AT\ATCS_source\lib\junit-4.10.jar"
   file "C:\AT\ATCS_source\lib\json_simple-1.1.jar"
-  file "C:\AT\temp\ATCS_v0.6.19\ATCS_v${VERSION}.jar"
+  file "C:\AT\temp\ATCS_v0.6.20\ATCS_v${VERSION}.jar"
   file "C:\AT\ATCS_source\lib\rsyntaxtextarea.jar"
   file "C:\AT\ATCS_source\lib\prefuse.jar"
   file "C:\AT\ATCS_source\lib\bsh-2.0b4.jar"

res/spritesheets.properties

@@ -30,6 +30,7 @@ atcs.spritesheet.items_misc_4.category=item
 atcs.spritesheet.items_misc_5.category=item
 atcs.spritesheet.items_misc_6.category=item
 atcs.spritesheet.items_necklaces_1.category=item
+atcs.spritesheet.items_newb.category=item
 atcs.spritesheet.items_omgeeky.category=item
 atcs.spritesheet.items_omi2.category=item
 atcs.spritesheet.items_phoenix01.category=item
@@ -46,6 +47,7 @@ atcs.spritesheet.items_weapons_3.category=item
 atcs.spritesheet.monsters_armor1.category=monster
 atcs.spritesheet.monsters_arulirs.category=monster
 
+atcs.spritesheet.monsters_cats.category=monster
 atcs.spritesheet.monsters_dogs.category=monster
 atcs.spritesheet.monsters_eye1.category=monster
 atcs.spritesheet.monsters_eye2.category=monster
@@ -70,6 +72,7 @@ atcs.spritesheet.monsters_man1.category=monster
 atcs.spritesheet.monsters_men.category=monster
 atcs.spritesheet.monsters_men2.category=monster
 atcs.spritesheet.monsters_misc.category=monster
+atcs.spritesheet.monsters_newb_1.category=monster
 atcs.spritesheet.monsters_omi1.category=monster
 atcs.spritesheet.monsters_omi1_b.category=monster
 atcs.spritesheet.monsters_omi2.category=monster
@@ -118,3 +121,12 @@ atcs.spritesheet.monsters_giantbasilisk.sizey=64
 atcs.spritesheet.monsters_hydra1.category=monster
 atcs.spritesheet.monsters_hydra1.sizex=64
 atcs.spritesheet.monsters_hydra1.sizey=64
+atcs.spritesheet.monsters_newb_2.category=monster
+atcs.spritesheet.monsters_newb_2.sizex=64
+atcs.spritesheet.monsters_newb_2.sizey=32
+atcs.spritesheet.monsters_newb_3.category=monster
+atcs.spritesheet.monsters_newb_3.sizex=64
+atcs.spritesheet.monsters_newb_3.sizey=64
+atcs.spritesheet.monsters_newb_4.category=monster
+atcs.spritesheet.monsters_newb_4.sizex=32
+atcs.spritesheet.monsters_newb_4.sizey=64

src/com/gpl/rpg/atcontentstudio/ATContentStudio.java

@@ -39,24 +39,24 @@ import com.gpl.rpg.atcontentstudio.ui.StudioFrame;
 import com.gpl.rpg.atcontentstudio.ui.WorkerDialog;
 import com.gpl.rpg.atcontentstudio.ui.WorkspaceSelector;
 
-
 public class ATContentStudio {
 
 	public static final String APP_NAME = "Andor's Trail Content Studio";
-	public static final String APP_VERSION = "v0.6.19";
-	
+	public static final String APP_VERSION = "v0.6.20";
+
 	public static final String CHECK_UPDATE_URL = "https://andorstrail.com/static/ATCS_latest";
 	public static final String DOWNLOAD_URL = "https://andorstrail.com/viewtopic.php?f=6&t=4806";
-	
+
 	public static final String FONT_SCALE_ENV_VAR_NAME = "FONT_SCALE";
 
 	public static boolean STARTED = false;
-	public static float SCALING=1.0f;
+	public static float SCALING = 1.0f;
 	public static StudioFrame frame = null;
 
-	//Need to keep a strong reference to it, to avoid garbage collection that'll reset these loggers.
+	// Need to keep a strong reference to it, to avoid garbage collection that'll
+	// reset these loggers.
 	public static final List<Logger> configuredLoggers = new LinkedList<Logger>();
-	
+
 	/**
 	 * @param args
 	 */
@@ -66,18 +66,19 @@ public class ATContentStudio {
 		if (fontScaling != null) {
 			try {
 				fontScale = Float.parseFloat(fontScaling);
-				SCALING=fontScale;
+				SCALING = fontScale;
 			} catch (NumberFormatException e) {
 				System.err.println("Failed to parse font scaling parameter. Using default.");
 				e.printStackTrace();
 			}
 		}
-		
+
 		ConfigCache.init();
-		
+
 		try {
 			String laf = ConfigCache.getFavoriteLaFClassName();
-			if (laf == null) laf = UIManager.getSystemLookAndFeelClassName();
+			if (laf == null)
+				laf = UIManager.getSystemLookAndFeelClassName();
 			UIManager.setLookAndFeel(laf);
 		} catch (ClassNotFoundException e) {
 			e.printStackTrace();
@@ -88,37 +89,40 @@ public class ATContentStudio {
 		} catch (UnsupportedLookAndFeelException e) {
 			e.printStackTrace();
 		}
-		
-		
+
 		scaleUIFont();
 
-		//Need to keep a strong reference to it, to avoid garbage collection that'll reset this setting.
+		// Need to keep a strong reference to it, to avoid garbage collection that'll
+		// reset this setting.
 		Logger l = Logger.getLogger(ExpressionParser.class.getName());
 		l.setLevel(Level.OFF);
-		configuredLoggers.add(l); 
-		
+		configuredLoggers.add(l);
+
 		final WorkspaceSelector wsSelect = new WorkspaceSelector();
 		wsSelect.pack();
 		Dimension sdim = Toolkit.getDefaultToolkit().getScreenSize();
 		Dimension wdim = wsSelect.getSize();
-		wsSelect.setLocation((sdim.width - wdim.width)/2, (sdim.height - wdim.height)/2);
+		wsSelect.setLocation((sdim.width - wdim.width) / 2, (sdim.height - wdim.height) / 2);
 		wsSelect.setVisible(true);
-		
+
 		wsSelect.addWindowListener(new WindowAdapter() {
 			@Override
 			public synchronized void windowClosed(WindowEvent e) {
 				if (wsSelect.selected != null && !STARTED) {
 					ATContentStudio.STARTED = true;
 					final File workspaceRoot = new File(wsSelect.selected);
-					WorkerDialog.showTaskMessage("Loading your workspace...", null, new Runnable(){
+					WorkerDialog.showTaskMessage("Loading your workspace...", null, new Runnable() {
 						public void run() {
 							Workspace.setActive(workspaceRoot);
-							if (Workspace.activeWorkspace.settings.useInternet.getCurrentValue() && Workspace.activeWorkspace.settings.checkUpdates.getCurrentValue()) {
+							if (Workspace.activeWorkspace.settings.useInternet.getCurrentValue()
+									&& Workspace.activeWorkspace.settings.checkUpdates.getCurrentValue()) {
 								new Thread() {
-									public void run() {checkUpdate();}
+									public void run() {
+										checkUpdate();
+									}
 								}.start();
 							}
-							frame = new StudioFrame(APP_NAME+" "+APP_VERSION);
+							frame = new StudioFrame(APP_NAME + " " + APP_VERSION);
 							frame.setVisible(true);
 							frame.setDefaultCloseOperation(StudioFrame.DO_NOTHING_ON_CLOSE);
 						};
@@ -138,7 +142,7 @@ public class ATContentStudio {
 			}
 		});
 	}
-	
+
 	private static void checkUpdate() {
 		BufferedReader in = null;
 		try {
@@ -146,32 +150,34 @@ public class ATContentStudio {
 			in = new BufferedReader(new InputStreamReader(url.openStream()));
 
 			String inputLine, lastLine = null;
-			while ((inputLine = in.readLine()) != null) {lastLine = inputLine;}
+			while ((inputLine = in.readLine()) != null) {
+				lastLine = inputLine;
+			}
 			if (lastLine != null && !lastLine.equals(APP_VERSION)) {
-				
-				// for copying style
-			    JLabel label = new JLabel();
-			    Font font = label.getFont();
-		        Color color = label.getBackground();
 
-			    // create some css from the label's font
-			    StringBuffer style = new StringBuffer("font-family:" + font.getFamily() + ";");
-			    style.append("font-weight:" + (font.isBold() ? "bold" : "normal") + ";");
-			    style.append("font-size:" + font.getSize() + "pt;");
-			    style.append("background-color: rgb("+color.getRed()+","+color.getGreen()+","+color.getBlue()+");");
-				
-				JEditorPane ep = new JEditorPane("text/html", "<html><body style=\"" + style + "\">"
-						+ "You are not running the latest ATCS version.<br/>"
-						+ "You can get the latest version ("+lastLine+") by clicking the link below.<br/>"
-						+ "<a href=\""+DOWNLOAD_URL+"\">"+DOWNLOAD_URL+"</a><br/>"
-						+ "<br/>"
-						+ "</body></html>");
-				
+				// for copying style
+				JLabel label = new JLabel();
+				Font font = label.getFont();
+				Color color = label.getBackground();
+
+				// create some css from the label's font
+				StringBuffer style = new StringBuffer("font-family:" + font.getFamily() + ";");
+				style.append("font-weight:" + (font.isBold() ? "bold" : "normal") + ";");
+				style.append("font-size:" + font.getSize() + "pt;");
+				style.append("background-color: rgb(" + color.getRed() + "," + color.getGreen() + "," + color.getBlue()
+						+ ");");
+
+				JEditorPane ep = new JEditorPane("text/html",
+						"<html><body style=\"" + style + "\">" + "You are not running the latest ATCS version.<br/>"
+								+ "You can get the latest version (" + lastLine + ") by clicking the link below.<br/>"
+								+ "<a href=\"" + DOWNLOAD_URL + "\">" + DOWNLOAD_URL + "</a><br/>" + "<br/>"
+								+ "</body></html>");
+
 				ep.setEditable(false);
 				ep.setBorder(null);
-				
+
 				ep.addHyperlinkListener(new HyperlinkListener() {
-					
+
 					@Override
 					public void hyperlinkUpdate(HyperlinkEvent e) {
 						try {
@@ -185,7 +191,7 @@ public class ATContentStudio {
 						}
 					}
 				});
-				
+
 				JOptionPane.showMessageDialog(null, ep, "Update available", JOptionPane.INFORMATION_MESSAGE);
 			}
 		} catch (MalformedURLException e) {
@@ -194,16 +200,17 @@ public class ATContentStudio {
 			e.printStackTrace();
 		} finally {
 			try {
-				if (in != null) in.close();
+				if (in != null)
+					in.close();
 			} catch (IOException e) {
 				e.printStackTrace();
 			}
 		}
 	}
-	
+
 	public static void scaleUIFont() {
 		if (SCALING != 1.0f) {
-			System.out.println("Scaling fonts to "+SCALING);
+			System.out.println("Scaling fonts to " + SCALING);
 			UIDefaults defaults = UIManager.getLookAndFeelDefaults();
 			Map<Object, Object> newDefaults = new HashMap<Object, Object>();
 			for (Enumeration<Object> e = defaults.keys(); e.hasMoreElements();) {
@@ -211,7 +218,7 @@ public class ATContentStudio {
 				Object value = defaults.get(key);
 				if (value instanceof Font) {
 					Font font = (Font) value;
-					int newSize = (int)(font.getSize() * SCALING);
+					int newSize = (int) (font.getSize() * SCALING);
 					if (value instanceof FontUIResource) {
 						newDefaults.put(key, new FontUIResource(font.getName(), font.getStyle(), newSize));
 					} else {

src/com/gpl/rpg/atcontentstudio/model/gamedata/Dialogue.java

@@ -68,7 +68,8 @@ public class Dialogue extends JSONElement {
 			deactivateSpawnArea,
 			activateMapObjectGroup,
 			deactivateMapObjectGroup,
-			changeMapFilter
+			changeMapFilter,
+			mapchange
 		}
 	}
 	
@@ -249,6 +250,7 @@ public class Dialogue extends JSONElement {
 					case removeSpawnArea:
 					case deactivateSpawnArea:
 					case changeMapFilter:
+					case mapchange:
 						reward.map = reward.map_name != null ? proj.getMap(reward.map_name) : null;
 						break;
 					case actorCondition:

src/com/gpl/rpg/atcontentstudio/model/gamedata/Requirement.java

@@ -60,7 +60,11 @@ public class Requirement extends JSONElement {
 		factionScore,
 		random,
 		factionScoreEquals,
-		wearRemove
+		wearRemove,
+		date,
+		dateEquals,
+		time,
+		timeEquals
 	}
 	
 	public enum SkillID {
@@ -196,6 +200,10 @@ public class Requirement extends JSONElement {
 		case factionScore:
 		case factionScoreEquals:
 		case random:
+		case date:
+		case dateEquals:
+		case time:
+		case timeEquals:
 			break;
 		}
 		if (this.required_obj != null) this.required_obj.addBacklink((GameDataElement) this.parent);

src/com/gpl/rpg/atcontentstudio/ui/DefaultIcons.java

@@ -260,6 +260,14 @@ public class DefaultIcons {
 	public static Image getTimerImage() { return getImage(TIMER_RES); }
 	public static Image getTimerIcon() { return getIcon(TIMER_RES); }
 	
+	private static String DATE_RES = "/com/gpl/rpg/atcontentstudio/img/date.png";
+	public static Image getDateImage() { return getImage(DATE_RES); }
+	public static Image getDateIcon() { return getIcon(DATE_RES); }
+	
+	private static String TIME_RES = "/com/gpl/rpg/atcontentstudio/img/date.png";
+	public static Image getTimeImage() { return getImage(TIME_RES); }
+	public static Image getTimeIcon() { return getIcon(TIME_RES); }
+	
 	private static String ALIGNMENT_RES = "/com/gpl/rpg/atcontentstudio/img/alignment.png";
 	public static Image getAlignmentImage() { return getImage(ALIGNMENT_RES); }
 	public static Image getAlignmentIcon() { return getIcon(ALIGNMENT_RES); }
@@ -273,7 +281,7 @@ public class DefaultIcons {
 	public static Image getStatusOrangeIcon() { return getIcon(STATUS_ORANGE_RES); }
 	
 	private static String STATUS_GREEN_RES = "/com/gpl/rpg/atcontentstudio/img/status_green.png";
-	public static Image getStatusGreenImage() { return getImage(STATUS_GREEN_RES); }
+	public static Image getStatusGreenImage() { return getImage(STATUS_GREEN_RES); } 
 	public static Image getStatusGreenIcon() { return getIcon(STATUS_GREEN_RES); }
 	
 	private static String STATUS_BLUE_RES = "/com/gpl/rpg/atcontentstudio/img/status_blue.png";

src/com/gpl/rpg/atcontentstudio/ui/ExportProjectWizard.java

@@ -57,7 +57,7 @@ public class ExportProjectWizard extends JDialog {
 		radioGroup.add(asZip);
 		overSources = new JRadioButton("... into a game source folder");
 		radioGroup.add(overSources);
-		asZip.setSelected(true);
+		overSources.setSelected(true);
 
 		pane.add(asZip, JideBoxLayout.FIX);
 		pane.add(overSources, JideBoxLayout.FIX);

src/com/gpl/rpg/atcontentstudio/ui/gamedataeditors/DialogueEditor.java

@@ -384,6 +384,13 @@ public class DialogueEditor extends JSONElementEditor {
 				rewardObj = null;
 				rewardValue = null;
 				break;
+			case mapchange:
+				rewardMap = addMapBox(pane, ((Dialogue)target).getProject(), "Map Name: ", reward.map, writable, listener);
+				rewardObjId = addTextField(pane, "Place: ", reward.reward_obj_id, writable, listener);
+				rewardObjIdCombo = null;
+				rewardObj = null;
+				rewardValue = null;
+				break;
 			case deactivateSpawnArea:
 			case removeSpawnArea:
 			case spawnAll:
@@ -777,6 +784,26 @@ public class DialogueEditor extends JSONElementEditor {
 				requirementObjId = addTextField(pane, "Faction ID:", requirement.required_obj_id, writable, listener);
 				requirementValue = addIntegerField(pane, "Exact value: ", requirement.required_value, true, writable, listener);
 				break;
+			case date:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Date type YYYYMMTT:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Minimum date value: ", requirement.required_value, true, writable, listener);
+				break;
+			case dateEquals:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Date type YYYYMMTT:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Exact date value: ", requirement.required_value, true, writable, listener);
+				break;
+			case time:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Time type HHMMSS:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Minimum time value: ", requirement.required_value, true, writable, listener);
+				break;
+			case timeEquals:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Time type HHMMSS:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Exact time value: ", requirement.required_value, true, writable, listener);
+				break;
 			}
 			requirementNegated = addBooleanBasedCheckBox(pane, "Negate this requirement.", requirement.negated, writable, listener);
 		}
@@ -943,6 +970,10 @@ public class DialogueEditor extends JSONElementEditor {
 				label.setText("Change map filter to "+rewardObjDesc+" on map "+reward.map_name);
 				label.setIcon(new ImageIcon(DefaultIcons.getReplaceIcon()));
 				break;
+			case mapchange:
+				label.setText("Teleport to "+rewardObjDesc+" on map "+reward.map_name);
+				label.setIcon(new ImageIcon(DefaultIcons.getMapchangeIcon()));
+				break;
 			}
 		} else {
 			label.setText("New, undefined reward");
@@ -1178,6 +1209,9 @@ public class DialogueEditor extends JSONElementEditor {
 			label.setIcon(new ImageIcon(DefaultIcons.getTimerIcon()));
 		} else if (req.type == Requirement.RequirementType.factionScore || req.type == Requirement.RequirementType.factionScoreEquals) {
 			label.setIcon(new ImageIcon(DefaultIcons.getAlignmentIcon()));
+		} else if (req.type == Requirement.RequirementType.date || req.type == Requirement.RequirementType.dateEquals || 
+				   req.type == Requirement.RequirementType.time || req.type == Requirement.RequirementType.timeEquals) {
+			label.setIcon(new ImageIcon(DefaultIcons.getDateIcon()));
 		}
 		if (req.type == null) {
 			label.setText("New, undefined requirement.");

src/com/gpl/rpg/atcontentstudio/ui/map/TMXMapEditor.java

@@ -731,6 +731,26 @@ public class TMXMapEditor extends Editor implements TMXMap.MapChangedOnDiskListe
 				requirementObjId = addTextField(pane, "Faction ID:", requirement.required_obj_id, writable, listener);
 				requirementValue = addIntegerField(pane, "Exact value: ", requirement.required_value, true, writable, listener);
 				break;				
+			case date:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Date type YYYYMMTT:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Minimum date value: ", requirement.required_value, true, writable, listener);
+				break;
+			case dateEquals:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Date type YYYYMMTT:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Exact date value: ", requirement.required_value, true, writable, listener);
+				break;
+			case time:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Time type HHMMSS:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Minimum time value: ", requirement.required_value, true, writable, listener);
+				break;
+			case timeEquals:
+				requirementObj = null;
+				requirementObjId = addTextField(pane, "Time type HHMMSS:", requirement.required_obj_id, writable, listener);
+				requirementValue = addIntegerField(pane, "Exact time value: ", requirement.required_value, true, writable, listener);
+				break;
 			}
 		}
 		requirementNegated = addBooleanBasedCheckBox(pane, "Negate this requirement.", requirement.negated, writable, listener);

src/com/gpl/rpg/atcontentstudio/ui/sprites/SpriteChooser.java

@@ -1,43 +1,34 @@
 package com.gpl.rpg.atcontentstudio.ui.sprites;
 
-import java.awt.BorderLayout;
-import java.awt.GridBagConstraints;
-import java.awt.GridBagLayout;
-import java.awt.Image;
-import java.awt.Point;
+import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.image.BufferedImage;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
-
-import javax.swing.ButtonGroup;
-import javax.swing.ImageIcon;
-import javax.swing.JDialog;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.JToggleButton;
-import javax.swing.ScrollPaneConstants;
+import javax.swing.*;
 
 import com.gpl.rpg.atcontentstudio.ATContentStudio;
 import com.gpl.rpg.atcontentstudio.model.Project;
 import com.gpl.rpg.atcontentstudio.model.sprites.Spritesheet;
 import com.gpl.rpg.atcontentstudio.model.sprites.Spritesheet.Category;
+import com.gpl.rpg.atcontentstudio.utils.SpriteUtils;
 
 
 public class SpriteChooser extends JDialog {
 
 	private static final long serialVersionUID = -6018113265015159521L;
-	
+
 	private static final int STD_WIDTH = 32;
 	private static final int STD_HEIGHT = 32;
 	private static final int MAX_PER_ROW = 10;
-	
-	public static Map<Project, Map<Spritesheet.Category, SpriteChooser>> cache = new LinkedHashMap<Project, Map<Spritesheet.Category,SpriteChooser>>();
-	public static Map<Project, Map<Spritesheet.Category, List<Spritesheet>>> cacheValidator = new LinkedHashMap<Project, Map<Category,List<Spritesheet>>>();
-	
-	
+
+	public static Map<Project, Map<Spritesheet.Category, SpriteChooser>> cache = new LinkedHashMap<Project, Map<Spritesheet.Category, SpriteChooser>>();
+	public static Map<Project, Map<Spritesheet.Category, List<Spritesheet>>> cacheValidator = new LinkedHashMap<Project, Map<Category, List<Spritesheet>>>();
+
+
 	public static SpriteChooser getChooser(Project proj, Spritesheet.Category category) {
 		if (cache.get(proj) == null) {
 			cache.put(proj, new LinkedHashMap<Spritesheet.Category, SpriteChooser>());
@@ -46,13 +37,13 @@ public class SpriteChooser extends JDialog {
 			cache.get(proj).put(category, new SpriteChooser(proj, category));
 		} else {
 			List<Spritesheet> spritesheets = new ArrayList<Spritesheet>();
-			for (int i=0; i<proj.getSpritesheetCount(); i++) {
+			for (int i = 0; i < proj.getSpritesheetCount(); i++) {
 				Spritesheet sheet = proj.getSpritesheet(i);
 				if (sheet.category == category) {
 					spritesheets.add(sheet);
 				}
 			}
-			if ( !spritesheets.equals(cacheValidator.get(proj).get(category)) ) {
+			if (!spritesheets.equals(cacheValidator.get(proj).get(category))) {
 				cache.get(proj).put(category, new SpriteChooser(proj, category));
 			}
 		}
@@ -65,20 +56,20 @@ public class SpriteChooser extends JDialog {
 		wanted.pack();
 		return wanted;
 	}
-	
+
 	private ButtonGroup group;
 //	private IconButton selectedOne = null;
 //	private JButton ok;
 //	private JButton cancel;
-	
+
 	public String selectedIconId = null;
-	
+
 	public SpriteChooser(Project proj, Category category) {
 		super(ATContentStudio.frame);
 		setTitle("Select a sprite");
 		setModalityType(ModalityType.APPLICATION_MODAL);
 		List<Spritesheet> spritesheets = new ArrayList<Spritesheet>();
-		for (int i=0; i<proj.getSpritesheetCount(); i++) {
+		for (int i = 0; i < proj.getSpritesheetCount(); i++) {
 			Spritesheet sheet = proj.getSpritesheet(i);
 			if (sheet.category == category) {
 				spritesheets.add(sheet);
@@ -88,8 +79,8 @@ public class SpriteChooser extends JDialog {
 			cacheValidator.put(proj, new LinkedHashMap<Spritesheet.Category, List<Spritesheet>>());
 		}
 		cacheValidator.get(proj).put(category, spritesheets);
-		
-		
+
+
 		JPanel pane = new JPanel();
 		pane.setLayout(new GridBagLayout());
 		GridBagConstraints c = new GridBagConstraints();
@@ -101,17 +92,20 @@ public class SpriteChooser extends JDialog {
 		c.gridheight = 1;
 		c.anchor = GridBagConstraints.NORTHWEST;
 		c.fill = GridBagConstraints.BOTH;
-		
+
 		List<Point> reservedSlots = new ArrayList<Point>();
 		Point nextFreeSlot = new Point(0, 0);
-		
+
 		int i;
-		Image img;
+		BufferedImage img;
 		group = new ButtonGroup();
 		//For every sprite find a free space in panel:
 		for (Spritesheet sheet : spritesheets) {
-			i = 0;
-			while ((img = sheet.getImage(i)) != null) {
+            i = -1;
+            while ((img = sheet.getImage(++i)) != null) {
+                if (SpriteUtils.checkIsImageEmpty(img)) {
+                    continue;
+                }
 				IconButton button = new IconButton(img, sheet.id, i);
 				group.add(button);
 				if (sheet.spriteWidth == STD_WIDTH && sheet.spriteHeight == STD_HEIGHT) {
@@ -121,7 +115,7 @@ public class SpriteChooser extends JDialog {
 						c.gridx = 0;
 						c.gridy++;
 					}
-					nextFreeSlot.setLocation(c.gridx,  c.gridy);
+					nextFreeSlot.setLocation(c.gridx, c.gridy);
 				} else {
 					c.gridwidth = (sheet.spriteWidth / STD_WIDTH) + (sheet.spriteWidth % STD_WIDTH == 0 ? 0 : 1);
 					c.gridheight = (sheet.spriteHeight / STD_HEIGHT) + (sheet.spriteHeight % STD_HEIGHT == 0 ? 0 : 1);
@@ -164,15 +158,14 @@ public class SpriteChooser extends JDialog {
 						c.gridx = 0;
 						c.gridy++;
 					}
-					nextFreeSlot.setLocation(c.gridx,  c.gridy);
+					nextFreeSlot.setLocation(c.gridx, c.gridy);
 				}
-				i++;
 			}
 		}
-		
+
 //		ok = new JButton("Ok");
 //		cancel = new JButton("Cancel");
-		
+
 		c.gridx = 0;
 		boolean emptyLine = false;
 		while (!emptyLine) {
@@ -185,7 +178,7 @@ public class SpriteChooser extends JDialog {
 				}
 			}
 		}
-		
+
 //		JPanel buttonPane = new JPanel();
 //		buttonPane.add(cancel, BorderLayout.WEST);
 //		buttonPane.add(ok, BorderLayout.EAST);
@@ -197,7 +190,7 @@ public class SpriteChooser extends JDialog {
 		scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
 		wrapper.add(scroller, BorderLayout.CENTER);
 //		wrapper.add(buttonPane, BorderLayout.SOUTH);
-		
+
 //		ok.addActionListener(new ActionListener() {
 //			@Override
 //			public void actionPerformed(ActionEvent e) {
@@ -207,7 +200,7 @@ public class SpriteChooser extends JDialog {
 //				if (listener != null) listener.iconSelected(selectedIconId);
 //			}
 //		});
-		
+
 //		cancel.addActionListener(new ActionListener() {
 //			@Override
 //			public void actionPerformed(ActionEvent e) {
@@ -217,21 +210,21 @@ public class SpriteChooser extends JDialog {
 //				if (listener != null) listener.iconSelected(null);
 //			}
 //		});
-		
+
 		setContentPane(wrapper);
 	}
-	
+
 	private SpriteChooser.SelectionListener listener = null;
-	
+
 	public void setSelectionListener(SpriteChooser.SelectionListener l) {
 		listener = l;
 	}
-	
-	
+
+
 	public class IconButton extends JToggleButton {
-		
+
 		private static final long serialVersionUID = 7559407153561178455L;
-		
+
 		public String sheetId;
 		public int spriteIndex;
 
@@ -239,12 +232,12 @@ public class SpriteChooser extends JDialog {
 			super(new ImageIcon(img));
 			this.sheetId = sheetId;
 			this.spriteIndex = spriteIndex;
-			setToolTipText(sheetId+":"+spriteIndex);
+			setToolTipText(sheetId + ":" + spriteIndex);
 			addActionListener(new ActionListener() {
 				@Override
 				public void actionPerformed(ActionEvent e) {
 					if (IconButton.this.isSelected()) {
-						selectedIconId = IconButton.this.sheetId+":"+IconButton.this.spriteIndex;
+						selectedIconId = IconButton.this.sheetId + ":" + IconButton.this.spriteIndex;
 						SpriteChooser.this.setVisible(false);
 						SpriteChooser.this.dispose();
 						if (listener != null) listener.iconSelected(selectedIconId);
@@ -253,9 +246,9 @@ public class SpriteChooser extends JDialog {
 			});
 		}
 	}
-	
+
 	public static interface SelectionListener {
 		public void iconSelected(String selected);
 	}
-	
+
 }

src/com/gpl/rpg/atcontentstudio/utils/SpriteUtils.java

@@ -0,0 +1,34 @@
+package com.gpl.rpg.atcontentstudio.utils;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.WritableRaster;
+
+public final class SpriteUtils {
+
+	/**
+	 * Check if the image is empty (transparent )
+	 *
+	 * @param img The image to check
+	 * @return true if the image is empty
+	 */
+	public static boolean checkIsImageEmpty(BufferedImage img) {
+		int width = img.getWidth(null);
+		int height = img.getHeight(null);
+		WritableRaster raster = img.getAlphaRaster();
+		if (raster == null) {
+			return false;
+		}
+		for (int x = 0; x < width; x++) {
+			for (int y = 0; y < height; y++) {
+				//get pixel alpha value
+				int alpha = raster.getSample(x, y, 0);
+				//if alpha is not 0 then the pixel is not transparent
+				if (alpha != 0) {
+					return false;
+				}
+			}
+		}
+		//no non-transparent pixel found
+		return true;
+	}
+}